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Finance & Tax

Best Accounting Software for Sole Traders UK (MTD for Income Tax, 2026)

The best MTD-ready accounting software for UK sole traders and landlords in 2026 — FreeAgent, QuickBooks and Xero compared on price, quarterly updates, AI features and ease of use.

SmarterBiz Editorial TeamUK SME Technology DeskUpdated 3 min read

Quick answer

FreeAgent is the best accounting software for most UK sole traders: it is built in the UK, recognised by HMRC for MTD for Income Tax, and free with eligible NatWest, RBS, Ulster Bank and Mettle accounts. QuickBooks is best if you want to manage everything from your phone, and Xero suits sole traders who work closely with an accountant.

Key takeaways

  • From 6 April 2026, sole traders and landlords with qualifying income over £50,000 must use MTD for Income Tax.
  • The threshold falls to £30,000 in April 2027 and £20,000 in April 2028.
  • You'll send quarterly updates plus a final declaration — software does most of the work.
  • Check the free-with-your-bank option before paying for anything.

Do you need MTD software?

If your combined gross income from self-employment and property is above the threshold, yes. Qualifying income is calculated before expenses, so a sole trader turning over £55,000 with £30,000 of costs is still in scope from April 2026. Check your position with HMRC's eligibility tool on GOV.UK. Our MTD timeline guide has the full detail.

The best MTD software for sole traders compared

FreeAgentQuickBooksXero
Best forFreelancers & sole tradersPhone-first bookkeepingWorking with an accountant
MTD for Income TaxYesYesYes
Price (approx.)Free with eligible bank accounts; otherwise ~£19/monthFrom ~£16/month (intro offers common)From ~£16/month
Receipt captureYesExcellent mobile captureYes (plus Dext integration)
AI featuresAutomated categorisationIntuit Assist, auto-categorisationJAX assistant, reconciliation suggestions
Tax estimatesClear tax timelineYesYes

How AI takes the pain out of quarterly updates

  • Bank feeds pull transactions in daily, and AI suggests the right category.
  • Receipt capture reads the supplier, amount and VAT from a photo.
  • Rules learn from your corrections so the same supplier is categorised automatically next time.
  • Tax estimates update as you go, so the January bill is never a surprise.

Which should you choose?

  • Bank with NatWest, RBS, Ulster Bank or Mettle? Start with FreeAgent — it may cost nothing.
  • Run your business from your phone? QuickBooks has the best mobile experience.
  • Have an accountant who uses Xero? Use Xero so you're working in the same system.

Frequently asked questions

What is the best free accounting software for sole traders in the UK?

FreeAgent is free with eligible NatWest, RBS, Ulster Bank and Mettle business accounts, and is recognised by HMRC for MTD. HMRC's software finder also lists some free products for people with simple affairs.

Do sole traders need to use Making Tax Digital?

Sole traders and landlords with qualifying income over £50,000 must use MTD for Income Tax from 6 April 2026, over £30,000 from April 2027 and over £20,000 from April 2028.

Can I use a spreadsheet for MTD for Income Tax?

Yes, if you use HMRC-recognised bridging software to send updates digitally. For most sole traders, accounting software with bank feeds and receipt capture is simpler.

SmarterBiz Editorial Team

Our editors test AI and business software against the realities of running a UK small business: sterling pricing and VAT, UK GDPR, HMRC's Making Tax Digital rules and British English output.

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